* {
    margin: 0;
    padding: 0;
}

ul, ol, li {
    list-style: none;
}

.box {
    width: 500px;
    margin: 50px auto;
    position: relative;
}

.box input {
    width: 400px;
    padding: 0 0 0 15px;
}

.box ul {
    width: 400px;
    padding: 0 0 0 15px;
    position: absolute;
    left: 0;
    top: 22px;
    display: none;
}